Hyena MRC-E250 User manual

Product Manual
MRC-E250
Original Instruction
Version 221206
Copyright © 2022 HYENA INC. All Right Reserved.

Table of Contents
Introduction
Product Features
Product Description ..................................................................................1
Parts Description ......................................................................................1
Product Dimension ...................................................................................2
Technical Data
Function....................................................................................................4
Characteristic............................................................................................4
Mounting Parameter .................................................................................5
Connection................................................................................................5
Certification...............................................................................................5
Mounting
Tool List ....................................................................................................6
Accessory List...........................................................................................6
Mounting Instructions................................................................................7
Safety Instructions
Important Notice .......................................................................................9
Moving and Storage Instructions ..............................................................9
Maintenance .............................................................................................9
Disposal....................................................................................................9

HYENA E-BIKE SYSTEMS
1
Introduction
This manual is intended primarily for the trained technician to install, disassemble, or maintain the Hyena e-bike system only.
Please read all the safety warnings and instructions carefully. Failure to follow the warnings and instructions may result in
death or severe injuries. Save this manual for future reference.
Product Features
Product Description
The MRC-E250 rear hub motor provides power for the e-bike. It features an amazingly lightweight, extra small size, and is
maintenance-free.
Parts Description
Item
Description
Item
Description
A
M6 Hex socket security bolt
D
Sticker (remove on install)
B
Anti-rotation flange nut
E
Cable (connect to controller)
C
M5 button-head hex socket screw
F
Cassette mounting base
A
D
E
B
A
B
C
F

HYENA E-BIKE SYSTEMS
2
Product Dimension
28H: 40010M20B-1
Unit: mm
Item
Dimension
A
Φ120.0
B
Φ3.0, 28 Holes
C
PCD Φ109.0
D
PCD Φ44.0
E
Cable 220 mm
F
25.2
G
47.0
H
8.0
I
41.2
J
13.8±0.1
K
35.0
L
13.8±0.1
M
15.5
N
72.2
O
144.5±1
P
172±1
Q
10
R
10
+0
-0.2
+0
-0.2
+10
-0

HYENA E-BIKE SYSTEMS
3
32H: 40010M20A-1
Unit: mm
Item
Dimension
A
Φ120.0
B
Φ3.0, 32 Holes
C
PCD Φ109.0
D
PCD Φ44.0
E
Cable 220 mm
F
25.2
G
47.0
H
8.0
I
41.6
J
13.6±0.6
K
35.0
L
13.8±0.1
M
15.5
N
72.2
O
144.5±1
P
172±1
Q
10
R
10
+0
-0.2
+0
-0.2
+10
-0

HYENA E-BIKE SYSTEMS
4
Technical Data
Function
Rated power
250 W
Rated voltage
36 V
Wheel size
26 to 28 inches
Max. torque
40 Nm
No-load RPM
≥270 RPM
w/o loading
Max. current at n0 RPM
≤1.7 A
w/o loading
Max. noise at n0 RPM
< 60 dB
w/o loading
Rated RPM
250 ±5% RPM
Max. efficiency
≥80 %
Weight
2.2 Kg
Waterproof level
IP54
Hall sensor
Yes
Speed sensor
Yes
1 Magnet
Characteristic
Protocol
N/A
Control type
Sine wave
Reduction ratio
1:12.6
Operating temperature
-10℃to +50℃80%RH
Storage temperature
-20℃to +70℃80%RH
Insulation
≥50 MΩ

HYENA E-BIKE SYSTEMS
5
Mounting Parameter
Mounting position
Rear Hub
Outer dimension
120 mm
Shaft length
197 mm
O.L.D. (over-locknut dimension)
144.5 mm
Axle type
10 mm
Spoke hole
28H/32H
28H: 40010M20B-1
32H: 40010M20A-1
Spoke hole type
13G
Brake type
Disk brake BCD 44 mm 6 bolts
Derailleur
Cassette 8-11 speed
≥ 34T freewheel
Cable outlet
Non-drive side through the shell
Cable length
220±10 mm
Standard connector
CM-WP412-09M
Connection
N/A
Certification
EN 15194:2017
Yes
CE
Yes
RoHS
Yes

HYENA E-BIKE SYSTEMS
6
Mounting
Tool List
Torque wrench set
Hexagon key set
Freewheel tool
Accessory List
Anti-rotation flange nuts (2 pcs)
Hex socket security bolts (2 pcs)
M5 button-head hex socket screws
(6 pcs)
M6xP1.0xt14mm
M5x7mm

HYENA E-BIKE SYSTEMS
7
Mounting Instructions
• Use the proper bicycle tools during the installation or removal process.
• Carefully installing this product is necessary, do not strike it with any tool such as a hammer or wrenches.
• CAUTION! Please strictly follow these steps for assembly; otherwise, an incorrect assembly may cause permanent
damage.
• NOTE: The bike image in the manual may be different from the actual bike, but will be enough to help you understand
related instructions.
Exploded View of Assembly
Installation
Peel the sticker away from the motor (left side).
Install the disc.
STEP
1
STEP
2

HYENA E-BIKE SYSTEMS
8
Fasten the screws (maximum torque 4.5 Nm).
Install and fasten the cassette sprocket and cassette
locking ring (right side).
Install the motor (rear wheel).
Insert the torque washer through the motor shaft
(washer bulge aligns with the flat side of the shaft), then
fasten the flange nut (maximum torque 11 Nm).
Completed.
STEP
3
STEP
4
STEP
5
STEP
6
STEP
7